1, close the background software and release the running memory of the mobile phone;

2, enter the mobile phone, my housekeeper-space management/space cleaning, scan and clean up the cached junk files;

3. Press and hold the software icon on the desktop-application information-storage or setting-application and permissions-application management-find the corresponding software-storage, and click "Clear data" and "Clear cache". Please back up the software data in advance when operating; Unload uncommon software to reduce the number of startup processes;

4. If the network application runs slowly, please switch to a good network. When the network is unstable, the software will load slowly.

5. Upgrade the software to the latest version; Enter Settings-System upgrade detects whether the mobile phone is the latest version, if not, you can try to upgrade to the latest system; Some iQOO UI version /Funtouch OS9.2 models need to be set up-My device-iQOO UI version /Funtouch OS version, so check and update the system.

6. Clear all data to be solved:

① Origin OS/FunTouch OS 9.2/iQoo (Monster) UI and above: enter Settings-System Management-Backup Reset-Clear all data (please back up important data first);

② The following figure ②Funtouch OS 9.2: Enter Settings-More Settings-Backup and Reset/Restore Factory Settings-Clear all data (please back up important data first).